Yarn winding machine



Sept. 13, 1938. w. H. KIMPTON ET AL 2,129,739

YARN WINDING MACHINE Filed May 5, 1936 Patented Sept. 13, 1938 UNITED STATES YARN WINDING MACHINE tion of Delaware Application May 5, 1936, Serial No. 77,904 In Great Britain May 15, 1935 2 Claims.

This invention relates to yarn winding machines, and in particular to machines for winding pirns and like packages. Such machines generally comprise a gear box driving one or two spindles each with its own transverse mechanism, several such gear boxes being assembled together for common drive in a single winding machine. The gear boxes serve to drive the spindles at high speed and also to control traverse mechanisms by which the yarns are moved to and fro over a path more or less parallel to the spindles but shorter than the length of the package supports mounted on the spindles, the field of traverse of the yarns being gradually carried lengthwise of the spindles to build up the packages. A stop mechanism is incorporated to bring the operation to rest upon the completion of the package or in the event of yarn breakage.

According to the present invention, each such winding spindle has associated therewith a further spindle, the two spindles being in geared connection so that the spindle driven by the gear box in turn drives the additional spindle, and the traverse bar for the one spindle is provided with an additional thread guide so as to serve both spindles.

In a preferred embodiment of the invention the additional spindle is carried by a bearing in a member forming an attachment adapted to be secured to the gear box and carrying an intermediate gear connecting gears provided on the two spindles. A single intermediate gear provides that the spindles both rotate in the same direction, so that winding can proceed in exactly the same manner at both spindles.

In order that the driving mechanism may be brought to rest in the event of breakage of either of the yarns led to the two spindles-a provision that is necessary in order that building of each of the packages may proceed correctly when the trouble has been rectifiedan additional trip mechanism is provided. This serves the additional spindle, and with advantage operates the stop motion in connection with the original spindle, this system ensuring the stoppage of both spindles in the event of breakage in yarn proceeding to either spindle.

By way of example a form of apparatus according to the invention will now be described in greater detail with reference to the accompanying drawing in which Fig. l is a front elevation, partly in cross-section, of the mechanism according to the invention included in a standard type of pirn winding machine;

Fig. 2 is a side elevation, partly in cross-section, of part of the mechanism shown in Fig. 1;

Fig. 3 is a plan of part of the mechanism shown in Figs. 1 and 2; and

Fig. 4 is a side elevation of a detail of Figs. 1 and 3.

The winding machine is of the well-known type which comprises a gear box i, a rotatable clutchcontrolling or starting rod 5, a clutch-driven winding spindle t, and reciprocating traverse rodl and associated pirn shaping and building mechanism 8. To commence winding the starting rod is rotated in an anti-clockwise direction against the pressure of the clutch spring and is locked in operative position in the manner to be 5 described hereinafter.

A gear wheel 9 is fixed to the spindle B at a point near the gear box C (see Figs. 2 and 3). Secured to the upper part of the gear box 41 in the vicinity of the gear wheel 9 is a bearing bracket it which rotatably houses the end of a second spindle H, the spindle H being equipped with a gear wheel i2 similar to the gear wheel 9. An intermediate gear wheel l3 rotatably mounted on a stud M outstanding from the bracket it forms a driving connection between the gears 9 and i2, and on rotation of the spindle 6 the spindle ii is driven in the same direction and at the same speed.

The pirn building mechanism 3 carried by the traverse rod 7! serves to guide two separate yarns I6, I! to pirn tubes l8, E9 mounted on the spindles 6 and M respectively, a guide 26 engaging and guiding the yarn it and a guide 2! disposed above the guide 263 engaging and guiding the yarn H. 'In this manner winding proceeds in exactly the same manner at both spindles 6 and H.

The yarns it, i'i each pass under a separate weighted trip wire 22, 23 in proceeding to the respective pirn tubes, the trip wires comprising stiff wires extending parallel to the spindles and being bent substantially at right angles near the gear box where they extend downwardly and pivot about a stud 2 i protruding from the gear box. Each trip wire is formed with two outstanding tails 26, 2? at opposite sides of the pivot. The tails 2'8 are weighted and tend to swing the trip wires in a clockwise direction about the pivot 2t, and the tails 2'! are hooked and engage an end of a pivoted, balanced finger 28.

When the yarns l6, H are proceeding normally to the corresponding pirn tubes l8, E9 the tension in the yarns prevents any clockwise movement of the trip wires. On breakage of a yarn, however, the trip wire in engagement therewith is freed for rotation under the influence of its weighted tail 26 and rocks the balanced finger 28 in an anti-clockwise direction. The movement of the finger 28 lifts an extensionn 29 of the finger (see Fig. 1) directly into the path of a member 3!) secured to the reciprocating traverse rod 1 with the result that the extension 28 is struck on the next backward movement of the member 3% and the finger 28 is knocked bodily towards the gear box (see Fig. l)

The finger 28 is pivoted at 3i on a pivoted upright latch member 32 formed with an outstanding stop 33 which normally engages an arm 3 projecting from the starting rod and prevents the starting rod rotating to disengage the clutch driving the spindle 6. On yarn breakage, however, the resulting knocking of the finger 28 by the member 36 swings the latch member 32 in an anti-clockwise direction about its pivot, the stop 33 thus being withdrawn from engagement with the arm 34 and allowing the starting rod 5 to rotate in a clockwise direction to bring the rotation of the spindles to an end.

When the yarn breakage is repaired the corresponding trip wire is re-set and the starting rod 5 is again rotated in an anti-clockwise direction to engage the spindle-driving clutch. The latch member 32 is then brought into position with the stop 33 engaging the arm 34, and winding proceeds normally. It will be understood that breakage of either yarn IE5 or H brings about the stoppage of both spindles, it thus being ensured that both pirns are built in precisely the same manner and contain a similar length of yarn. If desired the latch member 32 may be springurged in a clockwise direction in order that reengagement of the stop 33 and arm 3 1 is simplified.

The gears 9, l2 and !3 are encased by a guard 38 which slips over the gears and in addition to safeguarding the fingers of the machine operative prevents the catching of yarn in the gears.

Having described our invention what we desire to secure by Letters Patent is:-

1. A yarn winding machine for the production of pirns or like packages, comprising a gear box, a winding spindle driven from the gear box, a bearing bracket secured to the gear box, a further winding spindle rotatably mounted in said bearing bracket, means forming a geared connection between the two spindles, a traverse rod driven from the gear box, means on the traverse rod for guiding yarn to each of said spindles, a stop mechanism adapted to bring said winding spindles to rest, a pivoted finger adapted on rotation to operate the stop mechanism, and a pivoted trip wire in association with each of the yarns, each wire engaging the corresponding yarn at one side of the pivot and the pivoted finger at the other side of said pivot and being adapted to rotate the finger on failure of the yarn in association with the wire and thus to operate the stop mechanism.

2. A yarn winding machine for the production of pirns and like packages, comprising a gear box, a winding spindle driven from the gear box, a gear wheel fixed to said winding spindle, a bearing bracket secured to the gear box, a further winding spindle rotatabh mounted in said bearing bracket, a gear wheel fixed to said further winding spindle, an intermediate gear wheel rotatably mounted on said bearing bracket and disposed so as to engage both spindle gear wheels and thereby to rotate the further winding spindle in the same direction as the first-mentioned winding spindle, a traverse rod driven from the gear box, means on the traverse rod for guiding yarn to each of said spindles, a stop mechanism adapted to bring said winding spindles to rest, a pivoted finger adapted on rotation to operate the stop mechanism, and a pivoted trip wire in association with each of the yarns, each wire engaging the corresponding yarn at one side of the pivot and the pivoted finger at the other side of the said pivot and being adapted to rotate the finger on failure of the yarn in association with the wire and thus to operate the stop mechanism.

WILLIAM HARRY KIMPTON. STEPHEN MILLER FULTON. 

